The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 15, 2011

Filed:

Oct. 09, 2008
Applicants:

Alfio Zanchi, Colorado Springs, CO (US);

David M. Thomas, Colorado Springs, CO (US);

Joseph L. Sousa, Lawrence, MA (US);

Andrew J. Thomas, Arlington, MA (US);

Jesper Steensgaard-madsen, Mountain View, CA (US);

Inventors:

Alfio Zanchi, Colorado Springs, CO (US);

David M. Thomas, Colorado Springs, CO (US);

Joseph L. Sousa, Lawrence, MA (US);

Andrew J. Thomas, Arlington, MA (US);

Jesper Steensgaard-Madsen, Mountain View, CA (US);

Assignee:

Linear Technology Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

Circuits and methods that improve the performance of voltage reference driver circuits and associated analog to digital converters are provided. A voltage reference driver circuit that maintains a substantially constant output voltage when a load current is modulated by an input signal is provided. The voltage reference driver circuit synchronously decouples a voltage regulation circuit from the load circuit when modulating events such as pulses caused by the load circuit during a switching interval are generated, preventing disturbance of the regulation circuitry and keeping its output voltage substantially constant.


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